Load testing that lives where your code does.

Paste any valid k6 script into the Monaco editor. No proprietary extensions, no custom DSL. If it runs locally, it runs here.

import http from 'k6/http';
import { sleep } from 'k6';

export const options = {
  vus: 100,
  duration: '5m',
};

export default function () {
  http.get('https://your-api.example.com/');
  sleep(1);
}

Hit Run. We spin up stock grafana/k6 on GCP, start the BQ sidecar, and stream 1-second aggregates to your dashboard in real time.

# What happens under the hood:
k6 run --out json=/tmp/metrics.jsonl test.js

# Python sidecar tails the output:
# → parses k6 JSON format
# → aggregates p50/p95/p99 per second
# → streams rows to BigQuery

Each morning, Gemini analyzes your last 24 hours of runs and emails you a plain-English bottleneck report. No dashboard babysitting.

Subject: Testlyn digest — 2026-05-12

production-stress-v3 (500 VUs, 10 min)
  p95: 340ms peak at minute 6
  Spike correlates with error rate jump to 28%
  Likely cause: connection pool exhaustion at
  /api/orders under sustained concurrency.
  Recommendation: increase pool size or add
  circuit breaker before next test.